GB878850A - Improvements in and relating to apparatus for the automatic regulation of infinitely variable automobile gears - Google Patents
Improvements in and relating to apparatus for the automatic regulation of infinitely variable automobile gearsInfo
- Publication number
- GB878850A GB878850A GB14920/58A GB1492058A GB878850A GB 878850 A GB878850 A GB 878850A GB 14920/58 A GB14920/58 A GB 14920/58A GB 1492058 A GB1492058 A GB 1492058A GB 878850 A GB878850 A GB 878850A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- engine
- ratio
- governor
- pedal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
- F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
- F16H61/66254—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members controlling of shifting being influenced by a signal derived from the engine and the main coupling
- F16H61/66263—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members controlling of shifting being influenced by a signal derived from the engine and the main coupling using only hydraulical and mechanical sensing or control means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
878,850. Change-speed control. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. May 9, 1958 [May 11, 1957], No. 14920/58. Class 80 (2). In a vehicle having a steplessly variable-speed gear the ratio is automatically varied in such a way that each setting of the engine throttle valve corresponds to a definite engine speed. As shown, the ratio of an expanding pulley gear 106, 107 is controlled by a servomotor S supplied with liquid by an internal gear pump 35 through a control valve V. Valve V comprises co-operating sleeves 38, 42 controlled by a footoperated pedal 2 and an engine driven governor G respectively. Pedal 2 is connected by a rack and pinion 4, 6 to a shaft 7 which is connected by a rack and pinion 5, 79 to the sleeve 38. Shaft 7 is also connected through a cam mechanism to the engine throttle valve 33. With the pedal 2 in a particular position, if the load varies (e.g. due to hill climbing), the engine speed alters and governor G displaces sleeve 42 so that lands 44, 45 on the sleeve uncover ports 39, 40 in sleeve 38. Pump 35, which is driven by the engine shaft 46, then supplies liquid through a duct 82 and port 39 or 40 to the servomotor to vary the gear ratio. As the ratio varies the engine speed is restored to its former value and sleeve 42 is restored to its former position by the governor. On operating pedal 2 the throttle valve 33 is moved to a new position and valve sleeve 38 is moved axially, uncovering ports 39, 40 so that the servo motor is supplied with liquid to alter the gear ratio. The engine speed changes due to the change in ratio and in the setting of the throttle so that the sleeve 42 is moved by the governor to close ports 39, 40. The governor can be adjusted by varying the loading of a spring 68 so as to give a desired engine speed for any particular setting of the throttle. It is thus possible to ensure that the engine always gives its most economical performance.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE878850X | 1957-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB878850A true GB878850A (en) | 1961-10-04 |
Family
ID=6818732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14920/58A Expired GB878850A (en) | 1957-05-11 | 1958-05-09 | Improvements in and relating to apparatus for the automatic regulation of infinitely variable automobile gears |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB878850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2367228A1 (en) * | 1976-10-05 | 1978-05-05 | Volvo Car Bv | SPEED VARIATOR WITH CONICAL PULLEYS, ESPECIALLY INTENDED FOR MOTOR VEHICLES |
| US4369675A (en) * | 1978-11-13 | 1983-01-25 | Van Doorne's Transmissie B.V. | Method and apparatus for controlling an infinitely variable transmission of a motor vehicle |
-
1958
- 1958-05-09 GB GB14920/58A patent/GB878850A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2367228A1 (en) * | 1976-10-05 | 1978-05-05 | Volvo Car Bv | SPEED VARIATOR WITH CONICAL PULLEYS, ESPECIALLY INTENDED FOR MOTOR VEHICLES |
| US4369675A (en) * | 1978-11-13 | 1983-01-25 | Van Doorne's Transmissie B.V. | Method and apparatus for controlling an infinitely variable transmission of a motor vehicle |
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